k55 oil tubing 1.J55,K55,N80,L80,P110 steel grade 2. ... .NUE,EUE end form 4.length:R1,R2,R3 k55 oil tubing1.J55,K55,N80,L80,P110 steel grade2.OD:60 ... ")12.60H,J,L,N,C,T12.75NU12.75H,J,L,N,C,T12.75EUShandong Jialong Petroleum Pipe Manufacture Co.,LtdContact: Richard WangTel ... and beyond the imagination of the people. It is known for high quality and innovative product range coupled with committed services ...